Singer-songwriter Dev Hynes was reportedly involved in a physical altercation at Lollapalooza yesterday. The artist took to the stage donning a shirt sporting names like Trayvon Martin and Eric Garner and dedicating his set to remembering the victims of police brutality. But Hynes found himself on the wrong side of the law when he was allegedly assaulted by a security guard after his performance, and he took to Twitter to detail his and girlfriend Samantha Urbani’s experience with the staff at the festival.

TWITTER

TWITTER

According to Hynes, several attendees witnessed the altercation and he’s urging everyone to come forward through social media, though Lollapalooza seems to be deleting comments on their Facebook page related to the incident. Urbani claims the guard involved in the fight was “NOT Lolla staff, but privately hired for that stage,” and the festival released this statement earlier today:

“Late Friday night, we learned of an incident involving an artist and a security guard on site. Since then, we have been in contact with those involved and the authorities, as we work together to resolve the situation. As always, our top priority is to ensure the safety of everyone at the festival.”